Line control for rotary drilling rigs



lAnm-10,1926. .I 1,595,386

v. H. EARLEY LINE CONTROL Fon ROTARY D RI'LLI'NG RIGs i Filed Oct. l5.1925 2 ,Sheets-5h86?. l

Patented Ang. 1Q, 1925.

VIVIAN I-I. EARLEY, OF WHITTIER, CALIFORNIA.

LINE CONTROL FOR ROTARY DRILLING RIGS.

Application filed October 15, 1925. Serial No. 52,691.

yThis invention relates to a control for the drilling line of a rotarydrilling rig although it is to he understood. that the saine may be usedin connection with any kind of a cable such as a swabbing line7 a sandline or the like used Von a drum.

lt is well known to those slrilled in the art that during the operationof a cable of the type mentioned it is diiiicultV to eliminate theflapping and swinging of the line while in use and.y conserpuently,ydamage to the line and other serious trouble often results.

It is an object of the present invention to provide a control which willinsure proper feeding of the line to and from drum so that it will beheld thereon closely. A further object is to provide a control theoperation s of which is regulated by hydraulic means which is simple andcompact and can be'iny stalled readily.

Vith the foregoing and other objects in view which will appear as thedescription proceeds, the invention resides in the cornbination andarrangement of parts and in f the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the 1nvention herein disclosed may be made within thescope of what is claimed without departing from the spirit of theinvention.

In the accompanying drawings the preferred form of the invention hasbeen shown.

In said drawings,

Figure 1 is a plan view of the control.

Figure 2 is a frontelevation thereof.

Figure 3 is a section on line 3 3 Figure l.

Figure 4 is an enlarged section on line 4 4 Figure 1, a portion of theinner pipe of the telescopic connection being shown in elevation.

Referring to the .figures by characters of reference 1 designates aframe formed of pipe and one side of which is adapted to be connected toa supporting structure S by yolres or brackets 2 or any other suitablemeans. Braces 3 are located under the frame so that the same will besupported in a substantially horizontal position. The frame includes afilling opening l normally closed by a screw plug 5 and also includes avalve Y 6. The ends of the pipe constituting the frame are extendedtoward each other but spaced apart at the front of the frame and theterminals of the pipe are provided with A i. g nds .7 adapted to fitsnugly about 1)lungs s 8 which are slidable within the end of the pipeand can he formed of A ".io or can be solid as preferred. yFlieseplungers are connected to oposite ends respectively of a carage 9 itbeing understood that the plunge-rs 8 arevin alinement. rlhe carriage isheld against rotation by a guidevrod 10 which is parallel with the frontportion of the `frame and is secured at its ends to cross strips 1iconnecting the front and bach port-ions of the frame. This rod isslide-.bly eng ed by an arm 12 extending from the cali age.

The frontof the carriage is provided with an op 7;7' 13 normally bridgedby a plate 1i. This plate is fastened in position by parallel rods 1,5extending transversely of and secured to the carriage. Groove-d pulleys1.6 are mounted to slide and rotate. on the respective rods and are heldnormally thereon by opposed springs 17 centered which Iare mounted onthe rods and bear against the carriage. The peripheriesl of the pulleysarev disposed close together so that the grooves therein cooperate toprovide a pass 1S through which the line can worlr freely.

lVhen thel apparatus herein described is installed the carriage 9 ispositioned above a portion of the drum D ofthe drilling rig. The line isinserted between the pulleys 16 and when the drum D is actuated the linewill be wound thereon and at the same time travel downwardly through thepass 18. The. pulleys 16 will be drawn laterally against the action ofthe springs in the paths thereof and as the line is fed along the drumsthe carriage 9 will be moved there-v with. As la. result of this actionone of the. plungers 8 will cause Vthe water or other liquid inthetubular frame 1 to travel longitudinally from the path thereof, past thevalve 6 and longitudinally with the other plunger 8. Obviously byadjusting the valve 6 the flow of water or other liquid within the frame1 can be retarded to a desired eX- tent and the sliding movement of thecarriage y.@)similarly regulated. The carriage will of course movebackwardly and forwardly, according to the direction of movenient of theline, and the pulleys will also be free to move longitudinally along thebearrods 15 when subjected to pull by the 1111',

A i'alved drain 19 can be provided in tbe pipe 2l. so that the Water orother liquid contained therein can be Withdrawn at will.

ln the drawings tlie line or cable has been indicated at L.

vWhat is elainied is:

l. A eentrol ot' tbe Class described inliquid, and line ui lii'ig meansuf'itliin tlie ei'iee e? lie class described ineludl bular flannel, acarriage, plungers extending' in oppo, diretiiims 'from tlie Carriageand slidable in lie lfrai'i'ie, a liquid l be i' Controlling tbeinovewithin e 'liran'ie i nient ot be plunaers, n'ieans carried by thetraine 'for Controlling-3v the flow ol' the. liquid1 and line engagingpulleys slidably and rotatably mounted Within tlie carriage.

3. A device ot the class des-:ribed in- Cludinl tubular traine havingspaced ends, a carriage between said ends, oppositely e);- tending;`plungers projecting' `'from the earrieige and slidable Witliin therespective ends, a liquid within the 'iraine 'for controlling themovement ot l'lie plunger-s, inea Carried by the `traine for controllingthe tiovf' of. the liquid, a guide slidably engaged by the. earriage andsupgorted by the traine, end line guidingl pulleys mounted to slide androtate Witliin the traine.

Il. The Combination With la. tubular traine having spaced endsA` and aguide Carried by said traine, o a Carriage slidably mounted on tlieguide, plungers extending in oppote directions respectively from thecarriage and slidable within the respective end portions of the tranne,a` liquid Within said traine toi' retardine' the inoveinent of tbe ledby tlie freine for ilie tier.' of the liquid, line engaging pulleyswithin tbe Carriage mounted nd rotate, and yielding' ineans ior fr' thesliding' moreniento'f tlie pul- 5, plungers slidable within ie, meansfor directing' a il'i'aine and sealing' the iframe, 'lor Controlling thefion' of fluid giniuliually within tlie frame, o't ia. Carge inlei'pesedbetween and secured to the ixlrers, guide, means on tbe carriage diblyengaging tlie `guide, line guiding ulleys carried by tlie 'iranie andmounted o slide transversely thereof and to rotate liereiin @andyielding ineans i'or retarding be Sliding movement of the pulleys.

ln testii'nony that l claim the toregoing` as my own7 l have lie-retoaffixed my signature.

VTR/*IAN H. EARLE Y.

